#ban{
    width: 600px; height: 400px;
    position: absolute; left: 0; top: 0; right: 0; bottom: 0;
    margin: auto;
    background-color: white;
    color: black;
    border-radius: 10px;
    border: 1px solid black;
    z-index: 8;
}
#ban>form{
    text-align: center;
    font-size: 15px;
}
#ban p{
    text-align: center;
    font-size: 30px;
    font-weight: bold;
    margin-top: 20px;
}
#bantext{
    font-size: 20px;
}

#zhezhao{
    position: absolute;
    width: 97%;
    height: 100%;
    background-color: #FFFFFF;
    z-index: 5;
}
